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The issue of RF safety has recently come to the forefront of both public and regulatory attention. In 1996, the US FCC released its Report and Order 96-326, which specified the acceptable limits... View More

The issue of RF safety has recently come to the forefront of both public and regulatory attention. In 1996, the US FCC released its Report and Order 96-326, which specified the acceptable limits for wireless devices and systems, and tightened the requirements for certification and licensing purposes. In 1998, the Industry Canada department responsible for radio licencing initiated development of certification methodology for compliance with non-ionizing radiation specific absorption rate (SAR) limits established by Health Canada in its Safety Code 6. The SAR measuring system developed by APREL Laboratories and selected critical components of the system are discussed here.

Hand-held meters provide a rapid means of sampling MC of wood-based materials during and after processing to maintain quality assurance and compliance with standards. These measurements are influenced by actual MC, a number of other wood variables, environmental conditions, geometry of the me...

1.1 This practice covers a standard for establishing evaluation and certification procedures for personnel engaged in testing and inspecting bituminous paving materials in accordance with specified test methods and is intended for use by independent organizations providing certification services....

1.1 This test method covers a procedure for determining relative complex permittivity (relative dielectric constant and loss) and relative magnetic permeability of isotropic, reciprocal (non-gyromagnetic) solid materials. If the material is nonmagnetic, it is acceptable to use this pr...